emu 0404 数字 模拟 同轴 辫子制作.docx

How to build a custom EMU-0404 breakout cable for high end audio applications.
If you own an EMU0404 and use it for audiophile listening, then it's pretty obvious the stock breakout cable is pretty weak. It's flimsy and of poor quality, and then you need a weird 1/4" to RCA to hook it up to your amp...no fun.
So far it sounds great! Here's what I used to make mine, though you can substitue lower or higher quality parts where you see fit:
- Silver-plated copper mil-spec wire, teflon housing
- WBT 4% silver solder
- Tinned copper braided shielding
- Radio Shack DB9 D-Sub connector
- Radio Shack D-Sub Metal Hood
- Dayton Audio Pro-Fi locking RCA plugs
- Some Techflex & heatshrink to make it pretty
To start, you'll need the pinout for the breakout cable. Here it is, with the important ones in bold (from the Head-Fi forums courtesty of Stroog).

版本一：

1: nothing
2: right output
3: left output
4: left input
5: right input
6: right output ground
7: left output ground
8: left input ground
9: right input ground

版本二：其实是一样的，这卡是平衡输出

Analog 模拟接口
        1 - n/c
        2 - OUT-R - tip
        3 - OUT-L - tip
        4 - IN-L - tip
        5 - IN-R - tip
        6 - OUT-R - sleeve
        7 - OUT-L - sleeve
        8 - IN-L - sleeve
        9 - IN-L - sleeve

Digital 数字接口
        4 - SPDIF - out - gnd
        5 - SPDIF - out - signal
        6 - SPDIF - in - signal
        13 - SPDIF - in - gnd

So what exactly does that mean? Well, if you get the Radio Shack D-Sub connector each pin is marked. Just solder each wire to the correct pin. Otherwise, here's a handy diagram I came across online:

The top left pin is #1, the next one over is #2, and so on. When soldering to the back of the DB9 connector remember it will be in reverse, so the top right will be #1!
Instructions are below - please feel free to comment or email me if you have any questions.
* If you would like, contact me for a quote to build this cable for you using the same configuration I used for this tutorial.

就是普通9针串口

会了这个，M-Audio的delta卡同理，我只给出引脚定义

就是普通15针串口

Here is the pinout for the Delta 44/66.

1 - analog out1   模拟输出声道1，左声道
2 - analog out2   模拟输出声道2，右声道
9 - shared ground/shield for out1 and out2  这是左右声道的公共地，下面同理。

3 - analog out3
4 - analog out4
11- shared ground/shield for out3 and out4

13- analog in1
6 - analog in2
14- shared ground/shield for in1 and in2

15- analog in3
8 - analog in4
7 - shared ground/shield for in3 and in4